Radio Wiring and Amp Bypass

[StereoInstaller1]

This was also the case in my car, 1987 325i 4 door.

Also, my Left rear +: black/brown at connector position 7 was actually black/red in case anybody has the same issue. Thanks for the write-up, I got my back speakers working, now I just need to run new wire to the front speakers.

Now there is a first post!

[ScHpAnKy]

I have a 88 325ix. It has tweeters and a fader in the dash.

The wires back at the amp.


The wires up front. This is back a little ways so all the loops are eliminated. I believe the green and red wire is a hot battery wire, and thus it is not showing in the back.


From what I see it looks like I need to re-wire, but bimmer630 seems to have done it with a situation that originally looked like mine (no orange and brown wires). I went back on the amp wires about a foot and a half looking for the individual grounds for the each speaker. I didn't see any. Should I go back further, or do I just not have them? Just Scott doesn't say anything about tying in negatives to the speaker wires, but from what Luke is saying that seems necessary. Thanks for the help guys.

I'm a noob to forums and had an issue last time posting pics. In case those didn't work, here are the links

http://www.flickr.com/photos/71254823@N05/6443620731/

http://www.flickr.com/photos/71254823@N05/6443622887/

just wondering if anybody had an answer for this, there's NO ground cable on the dash side of an '88, but there's a spare brown in the trunk, should the speaker grounds in the trunk be run to the single massive brown wire that was originally into the amp?

[2.7i/3.2M]

Thanks for the write up!

[GunMetalGrey]

Feeling pretty silly here, I am usually okay at wiring but I cannot seem to get this one, it looks like someone tried to clean up the wiring and messed something up? Had a stereo in it when I purchased it but it didn't play anything and I wanted the amp deleted so I figured I would try to knock out two birds with one stone.
Wiring at HU

Wiring at trunk

What I took out

Car is an 89 325is with premium sound with no fader.
I have the same speaker wires in the back as I do in the front, and then the other bundle of non twisted pairs I cannot seem to get any speakers making any noise off of those wires.
Am I missing something or just plain screwed lol

[GunMetalGrey]

Interesting note, when I test for continuity from a pair of the trunk wires in my hand in the pic, they all have continuity.

[German Audio Specialties]

Oh lordie...please please tell me you didn't cut that bunch in your hand...that is all of your brake and tail lights! That second box, the small one that loos nothing like an amplifier...that is your check panel relay!

[GunMetalGrey]

The trunk wires in my hand appear to have come from the smaller box in the last picture.

[German Audio Specialties]

The trunk wires in my hand appear to have come from the smaller box in the last picture.

Exactly that....check panel relay pack.

Are you clear on the "re purpose" thing?

BTW, if you ever plan on having a great system, now is the time to get an amp.

Basically, that would mean you use all the stock wire in the trunk for the 4 speakers and only have to run RCA cables.

Luke

[GunMetalGrey]

You sure its the check panel relays? It sounds stupid questioning you but the check panel still works. Taillights don't though, looks like It's time for a new amp !

[WhyNot]

The trunk wires in my hand appear to have come from the smaller box in the last picture.

appear ?

You sure its the check panel relays? It sounds stupid questioning you but the check panel still works. Taillights don't though, looks like It's time for a new amp !

oh boy
this is gonna be a long uphill battle

when you cut the wires apart did you leave some wire left on the connectors so you can reattach them or did you get the cut really close to the connector so you didnt 'waste wire'.

[accident]

lol

[GunMetalGrey]

I am retarded, reversed the process.
What was I thinking?

[GunMetalGrey]

[GunMetalGrey]

Any idea what is going on up at the Head unit? I was just looking at the wiring and I cannot figure out what the po was trying to do

[German Audio Specialties]

Any idea what is going on up at the Head unit? I was just looking at the wiring and I cannot figure out what the po was trying to do

The wiring behind the head unit is all stock-ish, or close enough.

Do you understand the re-purposing of the wires?